Secondary Haemorrhage of the Vaginal Vault after Laparoscopic Hysterectomy

Primary Cause: Vault Dehiscence / Cuff Breakdown

Specific Causes

1. Thermal/Electrosurgical Injury (Most Important)

• Laparoscopic hysterectomy relies heavily on monopolar or bipolar energy (harmonic scalpel, LigaSure, etc.) for haemostasis and colpotomy.
• Excessive thermal spread to the vaginal cuff causes tissue necrosis and delayed sloughing, the single most important cause distinguishing laparoscopic from open/vaginal hysterectomy.
• The incidence of vault haemorrhage is higher after total laparoscopic hysterectomy (TLH) compared to abdominal or vaginal approaches, largely attributed to this mechanism.

2. Infection (Secondary Cuff Cellulitis / Abscess)

• Bacterial colonisation of the healing vault leads to inflammatory dissolution of the suture line.
• Common organisms: bowel flora, anaerobes, Streptococcus, Staphylococcus.
• Infection softens and disrupts the vascular pedicles at the vault, causing secondary haemorrhage (Bailey and Love's, p. 36).

3. Pressure Necrosis / Poor Suture Technique

• Overtight sutures create ischaemia in the cuff edges.
• Inadequate tissue bites or poor apposition leave dead space that becomes infected.
• Suture type matters: excessive absorbable suture reaction can prolong inflammatory breakdown.

4. Vault Dehiscence

• Breakdown of the vault suture line allows raw vascular tissue (uterine artery pedicles, vaginal vessels) to be exposed.
• Sexual intercourse before complete healing (within 6–8 weeks) is a recognised precipitating event.

5. Haematoma Formation

• An incompletely drained vault haematoma becomes secondarily infected, liquefies, and erodes adjacent vessels.

6. Malignancy

• In cases where hysterectomy was performed for gynaecological malignancy, tumour involvement of vault margins can erode vessels and cause secondary haemorrhage (Bailey and Love's, p. 36).

7. Patient Factors

• Immunocompromise (diabetes, corticosteroid use, HIV)
• Obesity (poor wound healing, increased tension on the cuff)
• Preoperative infection or vaginitis not adequately treated

Summary Table

Clinical Note

Treatment of Vault Haemorrhage after Laparoscopic Hysterectomy

Step 1: Initial Assessment & Resuscitation

• IV access with two large-bore cannulae
• Full blood count, coagulation screen, crossmatch
• IV fluid resuscitation and blood transfusion as needed
• Tranexamic acid (TXA) — 1 g IV; evidence from RCTs shows it significantly reduces re-operation rates for postoperative haemorrhage in hysterectomy patients (Management of Severe Peri-Operative Bleeding, p. 45)
• Correct any coagulopathy (FFP, platelets, cryoprecipitate as indicated)
• Examination under anaesthesia (EUA) to assess the vault

Step 2: Conservative / Local Measures (Minor Bleeding)

Step 3: Surgical Repair (Moderate to Significant Bleeding)

A. Vaginal Approach (First-line Surgical Option)

• Direct vault re-suturing vaginally — interrupted or figure-of-eight absorbable sutures (e.g. Vicryl/PDS) to close the bleeding cuff
• Drain any associated haematoma
• Preferred when the vault is accessible and bleeding point is visible

B. Laparoscopic Re-exploration

• Indicated when vaginal access is inadequate or bleeding source is supravaginal/pelvic
• Allows direct visualisation of vault pedicles, haematoma evacuation, and re-suturing of the cuff
• Vault re-closure with barbed suture (V-Loc or Stratafix) laparoscopically to ensure secure haemostasis
• Peritoneal lavage and drain placement

C. Laparotomy

• Reserved for haemodynamically unstable patients, failed laparoscopic control, or extensive pelvic haematoma
• Allows ligation of internal iliac artery or uterine artery pedicles if needed

Step 4: Interventional Radiology

• Uterine / internal iliac artery embolisation — considered when:
  • Bleeding is persistent but patient is haemodynamically stable
  • Surgical re-entry carries high risk
  • Active bleeding vessel identified on CT angiography
• Highly effective with success rates >90% in pelvic haemorrhage

Step 5: Management of Underlying Infection

• Wound/vault swab for culture and sensitivity
• IV broad-spectrum antibiotics (e.g. piperacillin-tazobactam or ceftriaxone + metronidazole)
• Drainage of any vault abscess or haematoma
• Prolonged oral antibiotic course on discharge

Summary Algorithm

Vault Haemorrhage Post-TLH
        ↓
Resuscitation + TXA + Bloods + Crossmatch
        ↓
EUA + Vaginal Inspection
        ↓
Minor ooze → Packing + Topical haemostatics + Antibiotics
        ↓ (if fails)
Vaginal re-suturing of vault
        ↓ (if fails or inaccessible)
Laparoscopic re-exploration ± vault re-closure
        ↓ (if haemodynamically unstable or extensive)
Laparotomy ± internal iliac artery ligation
        ↓ (alternative in stable patient with persistent bleeding)
Interventional radiology — arterial embolisation

Prevention (Key Points)

• Avoid excessive thermal energy at colpotomy — use cold scissors where possible
• Use delayed absorbable sutures (PDS, Vicryl) or barbed sutures for vault closure
• Ensure full-thickness bites incorporating the vaginal epithelium, pubocervical fascia, and uterosacral ligaments
• Treat pre-existing vaginitis before surgery
• Advise pelvic rest for 6–8 weeks postoperatively